Database（Trial）
The Oxford English Dictionary Online offers users the most complete, up-to-date, and extensive dictionary from Oxford. With continuous development, it now equates to the vocabulary volume of 25 print…
Oxford Journals Collection: a unique package that provides access to 395 high-quality journals in Medicine, Life Sciences, Humanities, Social Sciences, Mathematics and Physical Sciences, and Law…
PNAS: Proceedings of the National Academy of Sciences of the United States of America（P-ISSN 0027-8424; E-ISSN 1091-6490）《The Proceedings of the National Academy of Sciences was founded in 1914 and…
ProQuest Dissertations & Theses (PQDT Full-text Database of Dissertations and Theses) is a world-renowned dissertation database. It collects doctoral and master's theses from over 2,000…
The Natural Science Citation Index (SCI), is a multi-disciplinary comprehensive database focusing on the field of natural sciences. It contains more than 9,500 world authoritative journals in the…
Science has been at the center of important scientific discovery since its founding in 1880—with seed money from Thomas Alva Edison. Today, Science continues to publish the very best in research…
ScienceDirect is a full-text scientific database launched by Elsevier, offering globally leading full-text literature in science, technology, and medicine. It covers a wide range of disciplines and…
ScienceDirect, the full-text database platform of Elsevier, the world's leading publishing company, is the world's largest database of full-text electronic resources for science, technology and…
ScienceDirect, the full-text database platform of Elsevier, the world's leading publishing company, is the world's largest database of full-text electronic resources for science, technology and…
